<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>1_非受控组件</title>
</head>
<body>
	<!-- 准备好一个“容器” -->
	<div id="test"></div>
	
	<!-- 引入react核心库 -->
	<script type="text/javascript" src="../js/react.development.js"></script>
	<!-- 引入react-dom，用于支持react操作DOM -->
	<script type="text/javascript" src="../js/react-dom.development.js"></script>
	<!-- 引入babel，用于将jsx转为js -->
	<script type="text/javascript" src="../js/babel.min.js"></script>

	<script type="text/babel">
		class Login extends React.Component{
            handleSubmit=(event)=>{
                console.log(this)
                event.preventDefault()//阻止表单跳转
                const {username,password}=this;
                alert(`你输入的用户名是：${username.value},你输入的密码是：${password.value}`)
            }
            render(){
                return(
                    <form action="www.baidu.com" onSubmit={this.handleSubmit}>
                        用户名：<input type="text" ref={c=>this.username=c} name="username"/>
                        密码：<input type="password" ref={c=>this.password=c} name="password"/>
                        <button>登录</button>
                    </form>
                )
            }
        }
        // 渲染组件
        ReactDOM.render(<Login/>,document.getElementById("test"))
	</script>
</body>
</html>